DE502004004730D1 - Capacitive sensor for detecting water in oil - Google Patents

Capacitive sensor for detecting water in oil

Info

Publication number
DE502004004730D1
DE502004004730D1 DE502004004730T DE502004004730T DE502004004730D1 DE 502004004730 D1 DE502004004730 D1 DE 502004004730D1 DE 502004004730 T DE502004004730 T DE 502004004730T DE 502004004730 T DE502004004730 T DE 502004004730T DE 502004004730 D1 DE502004004730 D1 DE 502004004730D1
Authority
DE
Germany
Prior art keywords
capacitive sensor
oil
detecting water
electrode
detecting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DE502004004730T
Other languages
German (de)
Inventor
Peter Jungklas Nybo
Heikki Yli-Korpela
Lasse Ilves
Lars Christensen
Knud Georg Nielsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grundfos AS
Original Assignee
Grundfos AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Grundfos AS filed Critical Grundfos AS
Publication of DE502004004730D1 publication Critical patent/DE502004004730D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/26—Oils; viscous liquids; paints; inks
    • G01N33/28—Oils, i.e. hydrocarbon liquids
    • G01N33/2835—Oils, i.e. hydrocarbon liquids specific substances contained in the oil or fuel
    • G01N33/2847—Water in oil
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/226—Construction of measuring vessels; Electrodes therefor

Abstract

A capacitive sensor comprises a tubular first electrode (2) and a second electrode (18) which is arranged inside the first electrode and at a distance from the inner wall of the first electrode.
DE502004004730T 2004-07-13 2004-07-13 Capacitive sensor for detecting water in oil Active DE502004004730D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04016378A EP1617212B1 (en) 2004-07-13 2004-07-13 Capacitive sensor for detecting water in oil

Publications (1)

Publication Number Publication Date
DE502004004730D1 true DE502004004730D1 (en) 2007-10-04

Family

ID=34925728

Family Applications (1)

Application Number Title Priority Date Filing Date
DE502004004730T Active DE502004004730D1 (en) 2004-07-13 2004-07-13 Capacitive sensor for detecting water in oil

Country Status (3)

Country Link
EP (1) EP1617212B1 (en)
AT (1) ATE371188T1 (en)
DE (1) DE502004004730D1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009020439B4 (en) * 2009-05-08 2011-05-26 Knick Elektronische Messgeräte GmbH & Co. KG Two-pole liquid conductivity sensor for high hygiene requirements
EP3670921B1 (en) 2018-12-21 2023-06-07 Grundfos Holding A/S Pump assembly and method of controlling a pump
EP3702777B1 (en) 2019-02-27 2022-01-12 Grundfos Holding A/S Pump device and method for determining the concentration of a substance inside a liquid

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB675157A (en) * 1950-10-05 1952-07-02 Nat Res Dev Improvements in and relating to measuring or observing changes in the electrical conductivity of liquids
DE1653752A1 (en) * 1951-01-28 1971-07-01 Mowid Anstalt Portable, electrically driven submersible pump
DE4428616A1 (en) * 1994-08-12 1996-02-15 Gestra Ag Capacitive probe for monitoring liquid in a container
DE10296835B4 (en) * 2001-05-17 2014-07-03 Continental Automotive Systems, Inc. ( n. d. Ges. d. Staates Delaware ) A fuel sensor and method for determining a composition of a fuel mixture
DE10155371A1 (en) * 2001-11-10 2003-05-28 Bosch Gmbh Robert Sensor for determining the dielectric constant of a fuel
US6771074B2 (en) * 2002-01-31 2004-08-03 Eaton Corporation Probe assembly for a fluid condition monitor and method of making same

Also Published As

Publication number Publication date
ATE371188T1 (en) 2007-09-15
EP1617212A1 (en) 2006-01-18
EP1617212B1 (en) 2007-08-22

Similar Documents

Publication Publication Date Title
DE60128279D1 (en) Optical sensor for the detection of several analytes
FR2865544B1 (en) DEVICE FOR DETECTING A DISTANCE AND DEVICE FOR DETECTING A BODY
DE50115501D1 (en) PRESSURE SENSOR FOR DETECTING THE PRESSURE OF A LIQUID
ATE453319T1 (en) CENTRIFUGE TUBE ARRANGEMENT
DE60232576D1 (en) Capacitive detection sensor and manufacturing method therefor
CY1107947T1 (en) LIQUID PRESSURE SENSOR BOX
NO20040630L (en) Drilling fluid based on water-in-oil emulsion
DK1520513T3 (en) Shape detection sensor for insertion
DE60334370D1 (en) LIQUID SENSOR FOR ROUGH ENVIRONMENTS
DE60215069D1 (en) Device for determining errors of a pressure sensor
FR2843381B1 (en) CAPACITIVE SENSOR OF DYNAMIC SIZE
ATE371188T1 (en) CAPACITIVE SENSOR FOR DETECTING WATER IN OIL
FI20030946A0 (en) Capacitive acceleration sensor arrangement
DE50309702D1 (en) DEVICE FOR IMPROVING SENSING WITH AT LEAST TWO PRESSURE SENSORS
FI20030338A0 (en) Capacitive accelerator sensor construction
ITTO20020517A0 (en) DEVICE INCLUDING MEANS FOR SENSING THE HYDRAULIC OR CHEMICAL-PHYSICAL CHARACTERISTICS OF A FLUID
DE502004000396D1 (en) Disinfecting or Reinigungsmittelanschlusseinrichtung
DE60140833D1 (en) Pressure sensing apparatus
FI20020584A (en) A method for determining the scale of a detection area
DE602004015595D1 (en) FLUID LEVEL DETECTOR
DE60237871D1 (en) Capacitive liquid level sensor for underwater pumps
DE502004008159D1 (en) PRESSURE SENSOR ARRANGEMENT
FR2853058B1 (en) DETECTION OF PRESENCE BY CAPACITIVE SENSOR
DE50114607D1 (en) Oil level sensor
ATE359493T1 (en) ELECTRONIC DEVICE AND METHOD WITH A CAPACITIVE WATER SENSOR INTEGRATED THEREIN

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: VOLLMANN & HEMMER, 23554 LUEBECK